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Direction Finding with Gain/Phase Errors and Mutual Coupling Errors in the Presence of Auxiliary Sensors

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  • Weijian Si
  • Di Wu
  • Lutao Liu
  • Xinggen Qu

Abstract

Many classical direction of arrival (DOA) estimation algorithms suffer from sensitivity to array errors. A simple but efficient method is presented for direction finding in the presence of gain and phase errors as well as mutual coupling errors. By applying a group of auxiliary sensors, DOAs and gain and phase coefficients can be simultaneously estimated, and mutual coupling coefficients can also be estimated by utilizing a novel decoupling method. The proposed algorithm does not require iterative operation or any calibration sources or spectral peak searching. Simulation results demonstrate the effectiveness of the proposed method.

Suggested Citation

  • Weijian Si & Di Wu & Lutao Liu & Xinggen Qu, 2014. "Direction Finding with Gain/Phase Errors and Mutual Coupling Errors in the Presence of Auxiliary Sensors," Mathematical Problems in Engineering, Hindawi, vol. 2014, pages 1-12, March.
    • Handle: RePEc:hin:jnlmpe:429426
    DOI: 10.1155/2014/429426
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